Improvement in pumps



'UNITED STATES YPATENT OFFICE.

THOMAS J. VADLEIGH, OF SUTTON, NILV HAMPSHIRE.

liVlPROVENIENT IN PUMPS.

Specification forming part of Letters Patent No. 33,67 E dated November'5, 1861.

To @ZZ whom# vta/,y concern:

Beit known that I, THOMAS J. WADLEIGH, of Sutton, in the county ofMerrimac and State of New Hampshire, have invented a new and usefulImprovement in Hydraulic Pumps; and I do declare that the following is afull, clear, and exact description of the v construction and operationof the saine, reference being had to the drawings making a part of thisspecification, in which- Figure 1 is a longitudinal perspective view;Fig. 2, a longitudinal sectional view; Fig. 3, a view of the right andleft screw and sliding and rotary blocks; Fig. 4, a longitudinalsectional view of the same devices; Fig. 5, a front view'of the slidingblock and rotary block inserted therein; Fig. 6, a front upright view ofthe rotary block and curved projections; Fig. 7, a side view of thesame, and Fig. 8 a top view of the same.

The same letters in the different gures represent identical parts of themachine or apparatus.

A A A represent the cylinder or stock containing the pistons and valves.

B B are supports of the axle D, to which is attachedthe winch F.

I I are two front braces, (there being two corresponding braces between,not shown in the drawings,) which support the collar C and give strengthand firmness to the workin g apparatus of the pump.

' I'I is a spindle or shaft, on thelow part of which are cut right andleft hand screws, the grooves of which are represented by a a, rbc., anda a', &c., and on the upper end of which is a gearing-wheel O, the teethof which work into the teeth of `the gearing-wheel E on the axle D.

M is a collar moving on the upper part of the spindle H, with arms .I Jprojecting, to which the piston or valve-rods Q Q are attached.

N is a collar playing on the lower part of spindle H, with arms K Kprojecting, to which the piston or valve-rods Q Q" are attached, the rodQ" not being represented in the drawings.

L L are supports of the collar M.

R is a sliding block moving in a mortise or box U in the support L, thebox U being of sufficient dimensions to admit the free action of thesliding block R up and down a distance equal to the width of one threadand two grooves of the screw.

S is a rotary block moving in a corresponding box in the sliding blockR, bearing on its upper end a curved projection ZJ.

S is a rotary block moving in a corresponding box in support L, alsobearing on its upper end a curved projection C, both of Whichprojections are adapted to and traverse the grooves a a, dsc., and a a',thc., alternately as the pistons of the pump ascend and descend. Theblocks S S are made rotary in order that the projections b may adaptthemselves to the angles of the right and left grooves a a, dac., and aa', &c.,when the pump is in operation. The collar N has also acorresponding sliding block and rotary blocks bearing proj eotions b,constructed and operating precisely like those which are inserted insupports L L', theoutline of one of which last-mentioned rotary blocksis seen at S" in Fig. 2.

P is the lubricating-cup for the reception of oil, composed of thatportion of the pumpstock represented by A below the line T.

Having above described the construction of my improved apparatus forpumps, I now proceed to set forth its mode of operation, which is asfollows, viz: The motive power is applied through the medium of thewinch F, and is communicated to the pistons and valves through theinstrumentality of the shaft H and the screws ay o. and the collars Mand N. The projections l) in the supports L L traverse the groove a ofthe ri ght-hand male screw as the collar M ascends and in the groove aof the left-hand male screw as the same collar descends. Thecorresponding projections in the collar N act in the same manner, andare so adapted that while the projections in L L are traversing theright-hand groove 0L the projections in collar N are traversing thegroove Ca', thereby causing the collar M with its piston and valve toascend and the collar N with its piston and valve to descend preciselyat the same time and alternately. Thus when the pump is ready foroperation the collar M with its piston and valve is at the point as highas the screws will permit it to ascend, and the collar N with its pistonand valve is at the lowest point to which the screws permit it todescend, as seen in Fig. 1. lVhen the motive poweris applied, the collarM commences to descend and the collar N commences to ascend. rlhedownward motion of the collar M and upward motion ot' collar N continueuntil they approach to the point of contact, the screws beingconstructed so as to permit them to reach that precise point and toadvance either way no farther. This downward motion of the collar Mandupward motion of the collar N are eected by the action of theprojections b, the projections in the supports L L traversing the groovea of the right-hand male screw and the projections in collar Ntraversing the groove ct of the left-hand male screw. lVhen the twocollars M and N arrive at the precise point of Contact, the projectionsb in the supports L L pass into groove ct of the left-hand male screwand cause the collar M to ascend, while at the same time the projectionsb in the collar N pass into the groove a of the righthand male screw,thereby causing the collar N to descend. The rotatory block S in thesupport L and the corresponding rotary block S" in the collar N arestationary with respect to the male screws, merely rotating sufcientlyto adapt their projections b to the angles of the grooves a a vot thescrews as the collars M and N ascend and descend, as above described.The projection b in the sliding blockR passes up and down in the box U,moving in a space equal to the width of one thread and two grooves ofthe screws. Thus, as seen in Figui, (which is designed to represent thesupports L L in the position they occupy before the collar M commencesto descend,) the sliding block R, which bea-rs the rotary block S andits projection l), rests and presses upon the upper shoulder of the boxU. It continues in that position until the collar M with its supports LL have passed down to the lowest point to which they are permitted todescend. The projection b in the sliding block R then passes into theleft-hand groove d at the upper end of the groove, and the sliding blockmoves down the box U until its lower end rests and presses upon thelower shoulder of the box U, and there remains until the collar Mascends to the highest point to which it is permitted to go, when theprojection h reverses its action and passes in to the right-hand groovea., thereby causing the collar M to ascend. At the moment the projectionZ) in the sliding block passes into groove a at its upper extremity theprojection b in the stationary rotary block S passes into the samegroove at its lower extremity, both constantly acting in cooperation.The slidingblock and rotary blocks with their projections b in thecollar N operate in precisely the same manner, except at alternatetimes, with the corresponding blocks and projections b in the supports LL.

By means of the apparatus above described the pistons and valves aremade to act continuously and constantly upon the water, therebyproducing a continuous and constant flow. It is obvious that the pistonsand valves may be increased in number upon the same principle byincreasing the number of collars and apparatus therewith connected, asabove described.

Having above fully described my improvement in the hydraulic pump andits mode of operation, what I claim, and desire to secure by LettersPatent, is-

An improved pump composed of the stock A AvA", the axle D, the braces II and corresponding braces in the rear of I I, the collar C, the shaftII, with its right and left screws, the wheels O and E, the collar M,the arms .l J, the valve-rods Q Q, the arms K K, the supports L L', thesliding block R, the mortise U, the rotary blocks S S', with theirprojections b, the collar N, with its sliding and rotary blocks, and thelubricating-cup I), combined, arranged, and operating as above setforth.

In witness whereof I have hereunto set my hand and seal this 2d dayofMay, A. D. 1861,

THOMAS J. XVADLEIGH. [1.. s] lVitnesses:

. JOHN D. WADLEIGH,

BENJN. E. IVADLEIGH.

